Alloy Grade UNS: C91700 Nickel Gear Bronze

  • Overview

    Alloy Grade UNS C91700, commonly known as Nickel Gear Bronze, is a high-performance bronze alloy primarily composed of copper, tin, and nickel. It offers excellent strength, corrosion resistance, and wear resistance, making it suitable for demanding applications. The addition of nickel enhances its mechanical properties and improves its ability to withstand various environmental conditions, including exposure to seawater and industrial environments. This alloy typically exhibits good castability and machinability, making it a versatile material for manufacturing gears and other components where durability and resistance to wear are critical.

  • Typical Uses

    Bearings and gears. 

  • MetalTek Grade

    AGMA CL B

  • Poured At:

    Wisconsin Centrifugal Division

Similar Specifications

Cast UNS: C91700

Cast Grade: C91700

Cast ASTM: B427

Typical Chemical Composition (% by wt.)

Aluminum: n/a

Carbon: n/a

Chromium: n/a

Manganese: n/a

Iron: n/a

Copper: 85.5

Nickel: 1.5

Lead: n/a

Tin: 12

Silicon: n/a

Zinc: n/a

Other: P 0.2

Minimum Mechanical Properties

Tensile, ksi

0

Tensile, MPa

0

Yield, ksi

0

Yield, MPa

0

Elongation

0%

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Non-ferrous alloys are, literally, materials that are not iron-based. While others may provide non-ferrous materials of other materials, the MetalTek family of non-ferrous alloys are copper-based. In general, these materials deliver high strength, and excellent wear and corrosion resistance. They are often found in marine applications and also bushing, bearing, and gear environments.
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Stainless steels owe their ability to resist corrosion primarily to the presence of a passive film on their surface. Chromium is chiefly responsible for formation of the passive film. Iron ceases to rust at approximately 12% chromium content and resistance to oxidizing corrosives increases rapidly with chromium content up to approximately 20%.
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